Unless your telescope requires enormous amounts of back focus, this extension is WAY too long. Most telescopes need around 55mm, and this is far longer than that.

Made of sturdy metal, but a bit fiddly to get the camera and scope set up at first. Other than that it’s great for the price!

Senza non riuscivo a mettere a fuoco in quanto il corpo macchina andava in battuta sul focalizzatore non consentendomi di andare oltre come sarebbe stato necessario per la messa a fuoco. Purtroppo nel mio caso bisogna inserire l'oculare (Nikon D90 e Skywatcher 114/900)

fits well with my telescope and right size for my camera.

good price for a nice looking item

Worked perfectly on my sons telescope. Packaging was great. Couldn’t ask for more. I highly recommend.

This Neewer Variable Telescope Camera Adapter is a very nicely machined and useful piece of optical equipment for a Nikon DSLR camera and any quality telescope that accepts 1.25" eyepieces. It's a little bit of a stretch to call it an "optical device", since it contains no optics. But it is a super precise aluminum tube that facilitates taking excellent quality photographs using your Nikon DSLR and your telescope. It can take photos using prime focus (in which the telescope basically becomes a powerful telephoto lens for the camera) as well as eyepiece projection (which utilizes the telescope AND any eyepiece to get even higher magnifications.Different components of the adapter are used depending on which method is chosen. They all have precision cut threads to screw into each other and unscrew to facilitate reconnection together depending on the photography method. So for prime focus only the T-adapter, the ring that the T-adapter connects to, and the eyepiece tube on the end would be screwed together, and the assembly mounted on the camera with the T-adapter (the photo with the shorter tube protruding from the front of the camera is what that configuration looks like). For eyepiece projection (the photo with the longer assembly, as well as the one with the camera and adapter mounted to the scope), basically utilize all the adapter components, and the telescope eyepiece drops into the top of the adapter, with the bottom thumbscrew tightened down to hold the eyepiece in place. The upper extension tube (with the T-adapter and matching ring) slips over the rest of the assembly and the two upper thumb screws slightly tighten down into their corresponding channels, then screw down more tightly when the desired magnification is obtained. In addition, there are threads on the end of the 1.25" tube to accept any telescope filters that would normally be screwed onto the bottom of the eyepiece.It's really not that complicated to setup, unlike the way it probably sounds the way I described it here. What IS tricky, however, is aiming the scope and focusing with the camera and adapter mounted. Also, if photographing faint celestial objects, some type of precision automated tracking will be needed to allow the telescope to automatically track the item (compensate for the rotation of the earth, which magnified by the scope zooms by pretty quickly). Very bright objects like the moon, as well as terrestrial objects in bright daylight do not need tracking as the exposure time would be fairly short so the subject would not be affected by motion blur. A remote shutter release is VERY helpful for bright objects as well, and is a necessity for fainter objects to keep the touching of the camera from blurring the image.To give some semblance of how much magnification this adapter will let you obtain, I included 3 images: 1) This is a "normal" view of the scene (50mm lens equivalent) with a small circle superimposed towards the direction that the scope is pointing 2) A photo using the prime focus method (the focal length of my scope is 1250mm - roughly around 40X magnification) 3) The most highly magnified photo was taken using the eyepiece projection method (with a 20mm eyepiece - roughly around 65X or so).You may have noticed that these photos are a little bit "milky" and slightly out of focus. These defects are not the adapters fault, but they are due to three factors: 1) My telescope is a piece of junk (probably not a good idea to buy a telescope on sale at the big-box warehouse store); 2) As I mentioned earlier, it's kind of difficult to focus accurately, particularly since I was using the viewscreen on the back of the camera and it was a bit washed out in the sunlight; and 3) Motion blur - I didn't use a remote shutter release.The adapter itself is wonderful, but it is dependent on the quality of the optics in the scope and the eyepiece if eyepiece projection is used.

This isn't the same as a 200-500 Nikon zoom lens, and certainly doen't cost anywhere near to that, so don't expect it to result in the same quality photo. But the F-mount attached to my Nikon quite well, and the parts all fit together easily. It was simple to mount on the telescope by just slipping it into where the eyepiece was. And to help with being able to focus on terrestial objects (i.e. close by) I found it necessary to put the eyepiece removed from the telescope into the extension tube as the product page describes. After all of that you'll still be limited by the quality of the telescope (mine is pretty cheap), but that's due to the telescope and not the adapter. Only reasons to knock it down a star from a full five-star rating was 1) it's still a compromise, and 2) there's no well-written instruction manual, which would be especially helpful for the first-timer who's trying to insert the telescope eyepiece into the extension tube (it's not that hard, and you'll figure it out, but it would be good to have a better photo/text guide to get you through the process the first time).

I’ve paid more than twice what this cost just for a ring to fit an adapter to my camera. So all in all I’m extremely impressed with the price. The fit and finish on this is great and it gives you a large amount of flexibility by allowing you to change the focal length and the shoot with or without an eyepiece. This is a complete system that will facilitate the joining of a telescope with a Nikon DSLR.The adapter fits very precisely onto my Nikon body and the retaining rings are snug and centered. I’ve not picked up any internal reflection so I assume the interior is properly non-reflective. From what I can see it is. And all of the parts that are threaded and movable work very smoothly and nothing sticks.A good solid piece to your kit if you have a Nikon camera for sure.Just a reminder this is simply an adapter. There are new lenses or optical elements and the quality of your results will depend completely on the equipment and skill you bring to it.

My telescope has the minimal focus distance too large to do focal plane photography. With a basic 1.25-T2-EOSM, the image of very far objects is created in front of the sensor. I use a Canon M50, so I swap the T2-Nikon with a T2-EOSM adapter, any camera will work with this kit if you get the good T2 converter. With that focus constraint, unless I have the T2-EOSM cut down, I have no luck with this telescope. You could have the same issue with any mount, as the T2-xxxx adapter will bring the focal plane at the same distance for any camera, not all adapters will have the same length, but the focal plane is always correct to my knowledge. I may be able to do something with a Barlow lens, that remain to be tested.This is where this kit comes into action. The cool part of this kit is that it allows eyepiece projection, which mean that an eyepiece will create the image on the sensor instead of the main telescope mirror. With a long enough focal length (20 mm worked for me) I was able to set up something that work, although I get huge magnification, like 4x-5x times over the already huge 700 mm equivalent lens, and the 1.6x crop factor. The eyepiece is mounted farther away than it would normally be, but since the image focuses closer than normally, it should be that way. Shorter focal may bring me back into my original issue.Assembling the eyepiece into the tube is not something I would do in plain dark. It is not a huge challenge, but, I will do my setup before going outside chasing the moon.Overall, this is a good kit to get supplementary magnification from a telescope.

For some reason Canon made my R50 the most difficult camera to match accessories to. This coupled perfectly with the ring I finally found and gave me the extension I needed to reach infinity...and beyond. Great quality, clear measurement, and solid screws for adjustments.

This is my review of the "NEEWER 1.25” Variable Telescope Camera Adapter & 1.25" Extension Tube Kit, Compatible with Nikon DSLR Cameras & Telescope Eyepiece for Prime Focus and Eyepiece Projection Astrophotography"The item arrived in a box which was in a transparent plastic sealed bag. Not only was the bag completely sealed but after cutting/ripping open the bag, the box had the top lid sealed.At first, I was a bit worried since moving the box about/around, it seemed as if something was loose or it was broken. When I opened the box, everything appeared fine.I removed the existing lens from my Nikon D5300 DSLR and connected the device to it without any issues. Included is the T-Ring to connect to the Nikon DSLR.I have a lot of NEEWER camera accessories and they seem to be constructed very well and this item is no exception. It is entirely made from metal.There are no instructions included in the box on how to use it or connect it to the telescope but it was evident based on the pictures from the Amazon listing on how to do it and where the tightening screws are used.The product is good for those that have a telescope with a 1.25" eyepiece.